1 /* -*- Mode: Objective-C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 #import <Cocoa/Cocoa.h> 7 8 #import "mozView.h" 9 10 /* This protocol's primary use is so widget/cocoa can talk back to us 11 properly. 12 13 ChildView owns the topmost mozRootAccessible, and needs to take care of setting up 14 that parent/child relationship. 15 16 This protocol is thus used to make sure it knows it's talking to us, and not 17 just some random |id|. 18 */ 19 20 @protocol mozAccessible 21 22 // returns whether this accessible is the root accessible. there is one 23 // root accessible per window. 24 - (BOOL)isRoot; 25 26 // some mozAccessibles implement accessibility support in place of another object. for example, 27 // ChildView gets its support from us. 28 // 29 // instead of returning a mozAccessible to the OS when it wants an object, we need to pass the view 30 // we represent, so the OS doesn't get confused and think we return some random object. 31 - (BOOL)hasRepresentedView; 32 - (id)representedView; 33 34 #ifdef DEBUG 35 // debug utility that will print the native accessibility tree, starting 36 // at this node. 37 - (void)printHierarchy; 38 #endif 39 40 /*** general ***/ 41 42 // returns the accessible at the specified point. 43 - (id)accessibilityHitTest:(NSPoint)point; 44 45 // whether this element is flagged as ignored. 46 - (BOOL)accessibilityIsIgnored; 47 48 // currently focused UI element (possibly a child accessible) 49 - (id)accessibilityFocusedUIElement; 50 51 /*** attributes ***/ 52 53 // all supported attributes 54 - (NSArray*)accessibilityAttributeNames; 55 56 // value for given attribute. 57 - (id)accessibilityAttributeValue:(NSString*)attribute; 58 59 // whether a particular attribute can be modified 60 - (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute; 61 62 /*** actions ***/ 63 64 - (NSArray*)accessibilityActionNames; 65 - (NSString*)accessibilityActionDescription:(NSString*)action; 66 - (void)accessibilityPerformAction:(NSString*)action; 67 68 @end 69